Can applications get mixed up?

My daughter is a recruited athlete for MIT, and applied EA and was deferred. She spoke with the coach yesterday to touch base and see what, if anything, could be done to boost her application. The coach told her that she was deferred due to having some B’s. She’s never had a B. She told the coach this, as she was obviously confused as to how this could be her reason for deferral. The coach was surprised and said that she would get with admissions and get back to my daughter. Is it possible for my daughter’s application to be mixed up with another applicant? I am hoping that this is just an error on the coach’s part, but I am feeling anxious at the moment. I am hoping to not have to sit with this concern through the weekend.

On instinct, I would guess that it is much more likely that the coach has made a mistake than admissions.

Agreed with @ManaManaWegi. Likely the coach mixed something up here or there.